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Finding the Fourth Proportional to 13,257, 18,295.14 and 7,592.76

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Solution

The fourth proportional to 13,257, 18,295.14 and 7,592.76 is: 10,478.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257 : 18,295.14 = 7,592.76 : x
  2. Step 2: Convert to fraction form
    13,257/18,295.14 = 7,592.76/x
  3. Step 3: Cross multiply
    13,257x = 18,295.14 × 7,592.76
  4. Step 4: Simplify right side
    13,257x = 138,910,607.19
  5. Step 5: Solve for x
    x = 138,910,607.19/13,257
  6. Step 6: Final answer
    x = 10,478.28

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.